DE2841501A1 - ENCLOSED ANGLE MEASURING DEVICE - Google Patents

ENCLOSED ANGLE MEASURING DEVICE

Info

Publication number
DE2841501A1
DE2841501A1 DE19782841501 DE2841501A DE2841501A1 DE 2841501 A1 DE2841501 A1 DE 2841501A1 DE 19782841501 DE19782841501 DE 19782841501 DE 2841501 A DE2841501 A DE 2841501A DE 2841501 A1 DE2841501 A1 DE 2841501A1
Authority
DE
Germany
Prior art keywords
measuring device
angle measuring
shaped
scanning unit
circular
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
DE19782841501
Other languages
German (de)
Other versions
DE2841501B2 (en
Inventor
Alfons Dipl Ing Ernst
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dr Johannes Heidenhain GmbH
Original Assignee
Dr Johannes Heidenhain GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dr Johannes Heidenhain GmbH filed Critical Dr Johannes Heidenhain GmbH
Priority to DE2841501A priority Critical patent/DE2841501B2/en
Priority to CH735079A priority patent/CH639755A5/en
Priority to US06/075,136 priority patent/US4369578A/en
Priority to AT0602979A priority patent/AT376037B/en
Priority to IT12738/79A priority patent/IT1124176B/en
Priority to FR7923553A priority patent/FR2436965A1/en
Priority to GB7932843A priority patent/GB2035580B/en
Priority to JP12094879A priority patent/JPS5548604A/en
Publication of DE2841501A1 publication Critical patent/DE2841501A1/en
Publication of DE2841501B2 publication Critical patent/DE2841501B2/en
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/3473—Circular or rotary encoders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant

Description

DR. JOHANNAS HEID&NHA.IN GMBH 15. September 1978DR. JOHANNAS HEID & NHA.IN GMBH September 15, 1978

Gekapselte WinkelmeßeinrichtungEncapsulated angle measuring device

Die Erfindung betrifft eine gekapselte Winkelmeßeinrichfcung zur Messung von Drehwinkeln an Vorrichtungen, insbesondere an Dreh— oder Schwenktischen, deren Dreh— bzw. Schwenkbereich weniger als 360 beträgt, bei der eine auf einem Teilungsträger befindliche Winkelteilung von einer Abtasteinheit abgetastet wird.The invention relates to an encapsulated Winkelmeßeinrichfcung For measuring angles of rotation on devices, in particular on rotary or swivel tables, the rotary or Pivot range is less than 360, with an angular division on a graduation carrier of a scanning unit is scanned.

Es ist bekannt, bei derartigen Dreh— und Schwenktischen zur genauen Winkelpositxonierung einen handelsüblichen anbaufähigen Drehgeber anzuschließen, wie er beispielsweise in der Druckschrift: Inkrementale Drehgeber ROD Programm 78/79, 66 d 5 8/78 1E der Pinna Dr. Johannes Heidenhain GmbH beschrieben ist.It is known for such rotary and swiveling tables to connect a commercially available, mountable rotary encoder for exact Winkelpositxonierung, such as the one in the publication: Incremental Rotary Encoders ROD Program 78/79, 66 d 5 8/78 1E of the Pinna Dr. John Heidenhain GmbH is described.

Oftmals ist aber die Verwendung eines aolchen Drehgebers aus räumlichen oder konstruktiven Gründen nicht möglich, wenn beispielsweise der Schwenk— oder Drehtisch eine Hohlwelle aufweist.Often, however, a similar rotary encoder is used Not possible for spatial or structural reasons if, for example, the swivel or turntable is a hollow shaft having.

Der Erfindung liegt die Aufgabe zugrunde, eine hochge— naue Winkelmeßeinrichtung anzugeben, die mit geringem Raumbedarf in einem Dreh— oder Schwenktisch integriert ist.The invention is based on the object of specifying a high-precision angle measuring device which can be used with little Space requirement is integrated in a rotating or swiveling table.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Winkelteilung auf einem kreisringförmig ausgebildeten 'feilungsträger aufgebracht ist, der sich mitsamt der die Winkelteilung abtastenden Abtasteinheit im Inneren einesThis object is achieved according to the invention in that the angular division is formed on a circular ring 'Filing carrier is applied, which together with the Angular graduation scanning scanning unit inside a

- 3 ~ .
030013/0521 BAD ORiGSNAL - 3 ~.
030013/0521 BAD ORiGSNAL

kreisringförmig ausgebildeten Gehäuses mit einem kreisförmigen Schlitz befindet, der durch entsprechend ausgebildete Dichtelemente abgedichtet ist, und durch den ein schwertförmiges Zwischenstück hindurchgreift, das die .Abtasteinheit mit einem der zu messenden Teile verbindet.circular housing with a circular Located slot which is sealed by appropriately designed sealing elements, and through the a sword-shaped intermediate piece reaches through it, which connects the scanning unit with one of the parts to be measured.

Weitere vorteilhafte Ausbildungen der Erfindung entnimmt man den IJnteransprüchen.Further advantageous developments of the invention can be found in the subclaims.

Ein A'usführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert.An exemplary embodiment of the invention is shown in the drawing and is explained in more detail below.

Es zeigenShow it

Figur 1 eine Seitenansicht eines Schwenktisches mit einer gekapselten Winkelmeßeinrich— tung nach der Erfindung,Figure 1 is a side view of a swivel table with an encapsulated Winkelmeßeinrich— device according to the invention,

Figur 2 einen Ausschnitt eines Querschnitts des Schwenktisches nach Figur 1 undFigure 2 shows a detail of a cross section of the swivel table according to Figure 1 and

Figur 3 ein Detail im Querschnitt.Figure 3 shows a detail in cross section.

Der in den Figuren 1 und 2 dargestellte Schwenktisch weist eine ebene Tischplatte 1 auf, die um eine horizontale Hohlwelle 2 mittels Kugellager 3 in einem Grundkörper 4 in einem Winkelbereich kleiner als 180 schwenkbar ist.The swivel table shown in Figures 1 and 2 has a flat table top 1, which is around a horizontal hollow shaft 2 is pivotable in a base body 4 in an angular range of less than 180 by means of ball bearings 3.

Zur genauen Winkeleinstellung der Tischplatte 1 ist an einer mit der ebenen Tischplatte 1 senkrecht verbundenen, kreis— sektorförmigen Frontplatte 5 mittels Schraubverbindungen ein krexsrxngsektorföriniger Körper 7 befestigt, an dem ein kreisrxngsektorformxger Träger 8 mit einer Winkelteilung angebracht ist, die in an sich bekannter Weise von einer Abtasteinheit 9 abgetastet wird. Zum Schutz vor mechanischen Beschädigungen sind der Träger 8 und die Ab—For precise angle adjustment of the table top 1 is on one circular sector-shaped front panel 5 connected vertically to the flat table top 1 by means of screw connections a circular sector-shaped body 7 attached to which a circular sector-shaped carrier 8 with an angular division is attached, which is scanned by a scanning unit 9 in a manner known per se. To protect against mechanical damage is the carrier 8 and the

030013/0521030013/0521

tasteinheit 9 von einem kreisringsektorförmig ausgebildeten Gehäuse 10 in Form eines Hohlprofiles, vorzugsweise aus Aluminium, umgeben, das in beliebiger Weise an der Frontplatte 5 befestigt ist.probe unit 9 of a housing 10 designed in the shape of a circular ring sector in the form of a hollow profile, preferably made of aluminum, which is attached to the front plate 5 in any way.

Unterhalb des Gehäuses 10 ist an einer senkrechten Fläche 11 des Grundkörpers 4 in beliebiger Weise ein Montagefuß 12 mit einem schwertförmigen Zwischenstück 13 befestigt, der durch einen Schlitz 14 in der kreisförmig gebogenen unteren Fläche 15 des Gehäuses 10 mit der Ab— tasteinheit 9 verbunden ist. Um ein Eindringen von Verunreinigungen in das Innere des Gehäuses 10 zu verhindern, ist der Schlitz 14 durch im Querschnitt dachförmig angeordnete, krexsringsektorformige elastische Dichtlippen verschlossen. In einer weiteren Ausführungsform nach Figur 3 wird die Abdichtung des Schlitzes 14 durch kreis— ringsektorförmig ausgebildete Dichtungsstreifen 17 bewirkt. Below the housing 10 is a vertical surface 11 of the base body 4 in any way Mounting foot 12 with a sword-shaped intermediate piece 13 attached, which through a slot 14 in the circularly curved lower surface 15 of the housing 10 with the Ab- button unit 9 is connected. In order to prevent contaminants from entering the interior of the housing 10, the slot 14 is arranged in a roof-shaped cross-section, Krexsringsektorformige elastic sealing lips closed. In a further embodiment according to FIG 3, the sealing of the slot 14 is effected by sealing strips 17 formed in the shape of a circular ring sector.

Die zur Bestimmung des Neigungswinkels der Tischplatte 1 in der Abtasteinheit 9 gewonnenen elektrischen Signale werden über ein elektrisches Kabel 18 einer nicht dargestellten Auswerte— und Anzeigeeinheit zugeführt.The electrical signals obtained in the scanning unit 9 to determine the angle of inclination of the table top 1 are fed via an electrical cable 18 to an evaluation and display unit (not shown).

In einer weiteren Ausführungsform kann in nicht gezeigter Weise der Körper mit dem Träger und das Gehäuse an der senkrechten Fläche des Grundkörpers und der. Montage— fuß mit dem schwertförmigen Zwischenstück an der schwenkbaren Frontplatte befestigt sein.In a further embodiment, in not shown Way the body with the carrier and the housing on the vertical surface of the base body and the. Assembly- foot with the sword-shaped spacer attached to the pivoting front panel.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß die Integration der hochgenauen Winkelmeßeinrichtung im Schwenktisch eine erhebliche Raumer—The advantages achieved with the invention are in particular that the integration of the high-precision angle measuring device a considerable amount of space in the swivel table

030013/0521030013/0521

_ 5 —_ 5 -

sparnis zur Folge hat, da die Verwendung eines anbaufähigen Präzisionsdrehgebers mit großem Raumbedarf entfallen kann. Ebenso ist sie bei solchen Vorrichtungen einsötzbar, bei denen aus konstruktiven Gründen eine Verwendung eines anbaufähigen Drehgebers nicht möglich ist. Da der Radius der Winkelteilung der vorgeschlagenen Winkelmeßeinrichtung meist größer als derjenige der Winkelteilung eines handelsüblichen Dreh— gebers ist, wird zusätzlich eine höhere Winkelauf— lösung erzielt.result in savings, since the use of a cultivable Precision rotary encoders with large space requirements are not required can. It can also be used in those devices in which, for structural reasons, a Use of an attachable encoder is not possible. As the radius of the angular division of the proposed Angle measuring device usually larger than that of the angle division of a commercially available turning encoder, a higher angular resolution is also achieved.

Die gekapselte Winkelmeßeinrichtung nach der Erfindung ist mit Erfolg für eine lichtelektrische, optische, induktive, kapazitive und magnetische, sowohl absolute als auch inkrementale Arbeitsweise einsetzbar.The encapsulated angle measuring device according to the invention is successful for a photoelectric, optical, inductive, capacitive and magnetic, both absolute and incremental working method can be used.

030013/0521030013/0521

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LeerseiteBlank page

Claims (2)

DIi. JOHAL1IJIiU Η"·ίΙη^jNIIaTN GrWBII 15- September '1978 AnsprücheDIi. JOHAL1IJIiU Η "· ίΙη ^ jNIIaTN GrWBII 15- September '1978 Claims 1.) Gekapselte Winkelmeßeinrichtung zur Messung von Dreh— winkeln an Vorrichtungen, insbesondere an Dreh— oder Schwenktischen, deren Dreh— bzw. Schwenkbereich weniger als 360° beträgt, bei der eine auf einem 1Seilungsträge- befindliche Winkelteilung von einer Abtasteinheit abgetastet w.ird, dadurch gekennzeichnet, daß die Winkelteilung auf einem kreisringförmig ausgebildeten Teilungs— träger (8) aufgebracht isb, der sich mitsamt der die Winkelteilung abtastenden Abtasteinheit (9) im Inneren eines kreiaringförmig ausgebildeten Gehäuses (iO) mit einem kreisförmigen Schlitz (14) befindet, der durch entsprechend ausgebildete Dichtelemente (16, 17) abgedichtet; ist, und durch den ein schwertförmiges Zwischenstück (13) hindurchgreift, das die Abtastein— heit (9) mib einem der zu messenden Teile (1, 4) verbindet.1.) Encapsulated angle measuring device for measuring rotational angles of devices, in particular rotary or tilting tables, the rotational or pivotal range is less than 360 °, in which an angular graduation ilungsträge- located on a Se 1 w scanned by a scanning unit. ird, characterized in that the angular graduation is applied to a circular ring-shaped graduation carrier (8) which, together with the scanning unit (9) which scans the angular graduation, is located inside a housing (10) in the form of a circular ring with a circular slot (14), which is sealed by appropriately designed sealing elements (16, 17); and through which a sword-shaped intermediate piece (13) extends, which connects the scanning unit (9) with one of the parts (1, 4) to be measured. 2.) Winkelmeßeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dichtelemente (16) aus zwei kreis— ringförmig ausgebildeten, im Querschnitt dachförmig zueinander geneigten, -biegsamen Dichtlippen bestehen.2.) Angle measuring device according to claim 1, characterized in that the sealing elements (16) consist of two circular- annularly formed, in cross section roof-shaped to each other inclined, flexible sealing lips exist. 3·) Winkelmeßeinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dichtelemente (17) aus zwei kreis— ringförmig ausgebildeten elastischen Dichtungsstreifen bestehen.3.) Angle measuring device according to claim 1, characterized in that that the sealing elements (17) consist of two circular ring-shaped elastic sealing strips exist. M O ·—· M O - 030013/0521
SAÖ ORIGINAL 030013/0521
SAÖ ORIGINAL
DE2841501A 1978-09-23 1978-09-23 Encapsulated angle meter Ceased DE2841501B2 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE2841501A DE2841501B2 (en) 1978-09-23 1978-09-23 Encapsulated angle meter
CH735079A CH639755A5 (en) 1978-09-23 1979-08-10 ENCLOSED ANGLE MEASUREMENT DEVICE.
US06/075,136 US4369578A (en) 1978-09-23 1979-09-12 Encapsulated angle measuring apparatus
AT0602979A AT376037B (en) 1978-09-23 1979-09-13 ENCLOSED ANGLE MEASURING DEVICE
IT12738/79A IT1124176B (en) 1978-09-23 1979-09-18 GONIOMETRIC DEVICE IN EXECUTION CLOSED
FR7923553A FR2436965A1 (en) 1978-09-23 1979-09-21 PROTECTED ANGULAR MEASURING DEVICE
GB7932843A GB2035580B (en) 1978-09-23 1979-09-21 Enclosed angle measuring apparatus
JP12094879A JPS5548604A (en) 1978-09-23 1979-09-21 Angle measuring device with casing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2841501A DE2841501B2 (en) 1978-09-23 1978-09-23 Encapsulated angle meter

Publications (2)

Publication Number Publication Date
DE2841501A1 true DE2841501A1 (en) 1980-03-27
DE2841501B2 DE2841501B2 (en) 1980-12-18

Family

ID=6050268

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2841501A Ceased DE2841501B2 (en) 1978-09-23 1978-09-23 Encapsulated angle meter

Country Status (8)

Country Link
US (1) US4369578A (en)
JP (1) JPS5548604A (en)
AT (1) AT376037B (en)
CH (1) CH639755A5 (en)
DE (1) DE2841501B2 (en)
FR (1) FR2436965A1 (en)
GB (1) GB2035580B (en)
IT (1) IT1124176B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5157846A (en) * 1990-07-10 1992-10-27 Dr. Johannes Heidenhain Gmbh Scale
DE10117197B4 (en) * 2001-04-05 2014-10-09 Anton Rodi encoders

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US4472713A (en) * 1981-11-06 1984-09-18 Itek Corporation Optical encoder with integral flexible coupler
JPS5913155A (en) * 1982-07-12 1984-01-23 Honda Motor Co Ltd Controller for automatic speed change gear for car
GB2216268B (en) * 1988-03-31 1992-04-15 Schlumberger Ind Ltd Rotary displacement transducers
US5738657A (en) * 1992-06-15 1998-04-14 Abbott Laboratories Ambulatory energized container system
US5657544A (en) * 1995-09-26 1997-08-19 Ntn Corporation Device for detecting the angle of rotation
DE19904471B4 (en) 1999-02-04 2011-03-31 Dr. Johannes Heidenhain Gmbh encoders
DE19907326B4 (en) 1999-02-20 2013-04-04 Dr. Johannes Heidenhain Gmbh angle measurement
DE19945099B4 (en) * 1999-09-21 2008-09-04 Dr. Johannes Heidenhain Gmbh Angle measuring device and use of this angle measuring device in a spindle assembly
DE19957822A1 (en) * 1999-11-19 2001-05-23 Heidenhain Gmbh Dr Johannes Scanning device for the graduation scale of a position measurement system for use in an explosive environment has simple sensor protection circuit comprising thermal fuses contained with the electronics module protective housing
JP3942801B2 (en) * 2000-04-28 2007-07-11 Ｎｔｎ株式会社 Rotation angle detection sensor
DE10022555A1 (en) * 2000-05-10 2001-11-15 Heidenhain Gmbh Dr Johannes Angle measuring device
JP5883637B2 (en) * 2011-05-23 2016-03-15 株式会社ショーワ Relative angle detection device and electric power steering device
DE102013209106A1 (en) * 2013-05-16 2014-12-04 Dr. Johannes Heidenhain Gmbh Angle measuring device
ES2806274T3 (en) 2015-12-03 2021-02-17 Renishaw Plc Encoder device

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DE2349944A1 (en) * 1972-10-06 1974-04-11 Bausch & Lomb DEVICE FOR MEASURING THE DISPLACEMENT BETWEEN THE FIRST AND THE SECOND RELATIVELY MOVING BODIES
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DE968104C (en) * 1952-12-23 1958-01-16 Schenck Gmbh Carl Electrical device for converting measured values into numerical display and / or registration
DE6936334U (en) * 1969-09-17 1972-04-27 Siegfried Werth Spezialfabrik LENGTH MEASUREMENT DEVICE.
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DE2643304A1 (en) * 1976-09-25 1978-04-13 Fagor Electrotecnica Photo-electric arrangement measuring relative positions of objects - has measuring scale coupled to one object by profile and reading-off panel opposite

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US5157846A (en) * 1990-07-10 1992-10-27 Dr. Johannes Heidenhain Gmbh Scale
DE10117197B4 (en) * 2001-04-05 2014-10-09 Anton Rodi encoders

Also Published As

Publication number Publication date
GB2035580B (en) 1982-12-22
DE2841501B2 (en) 1980-12-18
JPS5548604A (en) 1980-04-07
GB2035580A (en) 1980-06-18
IT1124176B (en) 1986-05-07
CH639755A5 (en) 1983-11-30
IT7912738A0 (en) 1979-09-18
ATA602979A (en) 1984-02-15
AT376037B (en) 1984-10-10
US4369578A (en) 1983-01-25
FR2436965B1 (en) 1985-01-11
FR2436965A1 (en) 1980-04-18

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